Planetary hours
in Gent.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Wednesday, 21 May 2025: day of Mercury
- Sunrise
- 05:46
- Sunset
- 21:37
- Next sunrise
- 05:45
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury05:46 – 07:06
- 2☽︎ Moon07:06 – 08:25
- 3♄︎ Saturn08:25 – 09:44
- 4♃︎ Jupiter09:44 – 11:03
- 5♂︎ Mars11:03 – 12:22
- 6☉︎ Sun12:22 – 13:42
- 7♀︎ Venus13:42 – 15:01
- 8☿︎ Mercury15:01 – 16:20
- 9☽︎ Moon16:20 – 17:39
- 10♄︎ Saturn17:39 – 18:59
- 11♃︎ Jupiter18:59 – 20:18
- 12♂︎ Mars20:18 – 21:37
Night
- 1☉︎ Sun21:37 – 22:18
- 2♀︎ Venus22:18 – 22:58
- 3☿︎ Mercury22:58 – 23:39
- 4☽︎ Moon23:39 – 00:20
- 5♄︎ Saturn00:20 – 01:00
- 6♃︎ Jupiter01:00 – 01:41
- 7♂︎ Mars01:41 – 02:22
- 8☉︎ Sun02:22 – 03:02
- 9♀︎ Venus03:02 – 03:43
- 10☿︎ Mercury03:43 – 04:24
- 11☽︎ Moon04:24 – 05:04
- 12♄︎ Saturn05:04 – 05:45
Other cities · Belgium
Questions
How are the planetary hours calculated in Gent?
On Wednesday, 21 May 2025, the Sun rises at 05:46 and sets at 21:37: the day lasts 15h 51m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:45, lasts 8h 08m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Mercury, from 05:46 to 07:06: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.